Yoshida received his first command, that of the Chinpen, in June 1900. On October 1, 1901, he was promoted to lieutenant commander, and returned as an intelligence officer in China from 1902 to 1903. From 1903 through the end of the Russo-Japanese War he served as an intelligence officer in Seoul. [3]
In February 1906, Yoshida was assigned as executive officer on the battleship Suwo. He was promoted to commander in 1906, and assigned as executive officer to the cruiser Matsushima, followed by Azuma in 1907. He was promoted to captain in January 1911. From January 1914 to February 1915, he served as an intelligence officer in China, which included the period of Japanese naval operations in China during the Siege of Tsingtao in World War I. From February to December 1916, he was captain of the cruiser Katori.
Yoshida was promoted to rear admiral on December 1, 1916, and was assigned as Commander of the Interim Southern Islands Defense Unit. Afterwards, he served as chief of the 3rd Section (Intelligence) of the Imperial Japanese Navy General Staff. He was promoted to vice admiral on December 1, 1920. He went on the reserve list on March 23, 1923, and retired on June 28, 1932.[1] He died in 1942.